| abstract |
(57) [Summary] [PROBLEMS] To provide a polyolefin resin composition having excellent whitening resistance and calender moldability and excellent processability, and a film / sheet thereof. SOLUTION: The resin composition comprises 100 parts by weight of polypropylene and 10 to 800 parts by weight of polyethylene, the MFR of polypropylene is 1 to 10 g / 10 minutes, the polyethylene has (Mw / Mn) of 3 or less, and the density is 0.8 A resin having a MFR of 70 g / cm 3 or more and an MFR of 1.0 to 5 g / 10 minutes is melt-reactively extruded with a radical generator, and an antioxidant is added to the resin after the reaction and melt-extruded to obtain (MFRa) before the reaction. And the (MFRb) ratio after reaction is 1 <MF A polyolefin-based resin composition that is modified so that Ra / MFRb ≦ 3. |